View Secure Gateway Server is the server-side component for the secure HTTPS connection between client systems and a security server, Unified Access Gateway appliance, or Connection Server instance.
When you configure the tunnel connection for Connection Server, RDP, USB, and Multimedia Redirection (MMR) traffic is tunneled through the View Secure Gateway component. When you configure direct client connections, these protocols connect directly from the client to the remote desktop and are not tunneled through the View Secure Gateway Server component.
View Secure Gateway Server is also responsible for forwarding other Web traffic, including user authentication and desktop and application selection traffic, from clients to Connection Server. View Secure Gateway Server also passes Horizon Administrator client Web traffic to the Administration Server component.